M and R of Ranavav RWSS

Name of Work:- Replacement of Electro-mechanical equipment and other accessories of Ranavav Court Building

Head Works under Ranavav Group RWSS in District Porbandar.

Sr. Description of Items Qty. Unit Rate (Rs.) Amount (Rs.)

Eletro-Mechancal Items

1 Supply and installation of MS fabricated structure 1 No. 3,64,216.42

container @ site of work using 100 mm, 80 mm,

mm, 50 mm & 25 mm square pipes with Container

size 6.0 mtr X 3.0 mtr X 3.0 mtr including providing &

fitting of (1) backalite sheet 3.5 mm thick in sides, (2)

20 guage MS sheet outer side for side walls, (3)

backalite sheet 3.5 mm thick sheet for roof side, (4)

minimum 24 guage GI sheet out side with minimum

15 mm plywood sandwitch fitting & flooring with

minimum 19 mm water proof plywood sheet and (5)

shock proof rubber mating. Job includes oil painting

two coats, door locking handle arrangement,

providing proper air ventilation and fuse box. (6) one

exhaust fan (heavy-duty, minimum 300 mm sweep)

and two wall-mounted oscillating fans (minimum

mm sweep) for proper ventilation and heat

dissipation, along with GI louvers with insect mesh

for cross ventilation. The meter & fuse box should be

fitted on timber hold fast for holding screw or nut

bolts by semi skilled labour as per detailed technical

specifications, drawings and instructions of the

Engineer-in-charge.

2 Supplying, Fabricating and erecting MS supports, 400 Kg 77.00

chanels, angles, etc.

Providing, Erecting, Fabricating the M.S. Structure as

per requirement on site incorporating proper size of

MS Angle, Square, Round, flat, Bars, Channels,

Sections complete with cutting, welding, grinding

and finishing duly painted with one coat of red oxide

with erection on site as per direction of engineer

incharge with neccessary grouting, cementing,

plastering & finishing complete.

3 RCC Foundation: 8 Cum 8351.50

Providing & Laying Reinforced Cement Concrete in

GWSSB, Gandhinagar

Volume-IV, Price Bid Ranavav Court Building

Thrust Block,Piping and Valves Supports,Foundation

etc. with Tar steel, Black Trap Kapchi as Coarse

Aggreate for Raft,Grillage Footing with Necessary

Centering Form work, Consolidating as per Directive

in 1:2:4 Ratio comp. as per site requriement.

4 Supply, installation, testing & commissioning both 1 No. 9,90,802.00

side extensible, Indoor type HV Switchgear panel

confirming to IS-3427, IS-2516 (Part- I & II.sec.1 ) &

IEC-60056 & IEC-62271-100/200 for use on 3 phase,

50 Hz, unearthed AC supply system and having

breaking/ ruptuing capacity of 500 MVA (26.3 kA for

3sec) complete with spring charged mechanism, ON-

OFF mechanical push button, operation counters,

Breaker TNC switch, Breaker L/R switch, necessary

auxiliary switches, closing coil, shunt trip, protection

relays & Indicators etc. complete. The panel shall

comprise of air insulated busbars provided with heat

shrinkable PVC sleeves. The VCB trolley shall

comprise of three vacuum interrupters with epoxy

support insulators and self aligning finger type

isolating contacts and necessary mechanical

interlocks, safety shutters, isolating plugs. Enclosure

shall be openable from front as well as rear end.The

breaker shall be Manual cum motorised mechanism

with following accessories.

a) 96 x 96 mm square flush mounting type Ammeter

& Volt meter with selector switches

b) Multi function meter

c) Double core, cast resin type current transofrmer

having ratio as per requirement, one core for

metering & one core for protection having required

class of accuracy.

d) Instantaneous under voltage relay & Temperature

rise tripping Relay,

e) Triple pole IDMTL two over current and one earth

fault relay with current setting range 50-200% and

f) Electrical closing. coil & shunt trip coil operating on

g) Auxiliary relay for anti pumping device.

h) Three limb, drawout type, feeder connected, cast

resin insulated, three phase Potential transformer

having ratio & burden as per reqirement & Class

GWSSB, Gandhinagar

Volume-IV, Price Bid Ranavav Court Building

i) Annunciator Windows, Common Hooter / Alarm

bell operating on 230 AC/ 110 V DC.

j) Cable boxes suitable to terminate 3 core XLPE

cable of required size (As per design).

k) 230V AC to 110 V DC power pack for closing &

tripping circuit common.

l) Breaker ON-OFF, Auto trip and spring charged

m) Phase indicating & panel illumination lamps with

n) Space Heater with Thermostat.

11 kV HV Switchgear Panel- Comprising of 630 A

Vacuum circuit breaker for 1 no. Incomer, 2 nos. O /

G feeders for 11/0.433 kV distribution transformers.

5 11 kV (Earthed) Grade Cable- Aluminium Conductor: 60 RMT 1,045.00

Supply, laying, testing & commissioning of 6.35/

kV (E) grade, XLPE insulated, stranded Aluminium

conductor, galvanised steel flat strip / round wire

armoured, extruded PVC type ST2 sheathed, heavy

duty cable (to be laid on wall surface with necessary

clamps / in existing cable trench / cable trays /

conduit / pipe sleeves at road crossing or floor as per

site requirement) conforming to IS:7098 (Part-2) &

IEC:60502 (Part-2) of following sizes:

3 Core x 240 Sqmm

6 11 kV Outdoor Cable Terminations: 3 No. 6,763.00

Providing & fitting heat shrink cable termination/

jointing kits for 11 kV (E) grade XLPE insulated cable

including necessary earth connectivity connection,

material & consummables making the termination/

joint complete ensuring the joint resistance is within

the permissble limit as per IS, of following types &

sizes: Outdoor Terminations Kit suitable for 3C x

7 11 kV Indoor Cable Terminations: 3 No. 4,798.00

Providing & fitting heat shrink cable termination/

jointing kits for 11 kV (E) grade XLPE insulated cable

including necessary earth connectivity connection,

material & consummables making the termination/

joint complete ensuring the joint resistance is within

the permissble limit as per IS, of following types &

sizes: Indoor Terminations Kit suitable for 3C x

GWSSB, Gandhinagar

Volume-IV, Price Bid Ranavav Court Building

8 LV APFC PANEL: 250 KVAR 1 No. 4,42,718.00

Supply ,installation,testing & commissioning LV APFC

panel consisting of required capacitor bank for

continuous duty to improve P.F. 0.85 to 0.99 in

required steps enclosed in dust & vermin proof

compartment, indoor type ,fabricated from CRCA

sheet steel with minimum thickness of 3 for base

frame / channel / gland plates , 2.0 mm for load

bearing members / doors & 1.6 mm for internal

partitions , minimum degree of protection -IP42,

busbar chamber , required size of AI bus bar /

terminals , min 10 stage APFC relay metering,

indicating lamps, push buttonsm, with detuned

reactor complete as per IS 15636-2017 with latest

amendment & detailed technical specification and

data sheetas under:

a) 630 A, 50 kA for 1sec. TP, TM based MCCB with

spreader terminals & rotary handle b) 0-630 A range

analogue ammeter of 96 x 96 mm size with selector

switch c) 3nos. 630/5A, 10 VA CL-1.0 cast resin type

current transformer d) Suitable rating of MCCB/ MCB

& Contractor for each capacitor bank e) Suitable

rating APP type capacitor banks (vacuum

impregnated with non-PCB/ non toxic oil, internally

delta connected with built in internal fuses complete

with discharge resistances & terminal cover) of

approved make in required steps (e.g., 300 KVAR

capacity will be provided in steps of 2nos x 5 KVAR,

nos x 10 KVAR, 2 nos x 15KVAR, 2 nos x 20 KVAR, &

9 Transformer: 1 No. 11,95,051.00

SITC of outdoor type, three phase, oil immersed,

distribution transformer of required KVA & voltage

ratio, copper double wound, vector group - Dyn11,

HV delta connected & LV star connected with neutral

brought out connected to provide separate earthing

terminals, bushing / cable box on HV side and cable

box on LV side suitable for cables or bus duct as per

requirement with standard fittings, conforming to IS:

1180 (Part-1) / 2014 with its latest amendment

including first fill of transformer oil & following

GWSSB, Gandhinagar

Volume-IV, Price Bid Ranavav Court Building

(a) Oil conservator with filling holes with cap and

prismatic oil level gauge. (b) Silica Gel dehydrating

breather charged with silica gel (c) Oil drain cum

sampling valve with plug (d) Oil filter valve (e) Lifting

Eyes / Hooks / Lugs (f) Two earthing terminal (g)

Diagram and rating plate (h) Air release plug (i)

Explosion vent with diaphragm (j) Thermometer

pocket (k) Four bi-directional plain roller with base

channel with hauling holes (l) Fixed / Separate type

radiator banks (m) Off circuit externally operated

tapping switch (For rating < 1000 kVA) (n) 100 mm

stem type oil temperature indicator (For rating <

kVA) (o) Bucholtz relay with shut off valve (For rating

≥ 500 KVA) (p) 150 mm dial type oil temperature

indicator with Alarm / Trip contact (For rating ≥

kVA) (q) 150 mm dial type winding temperature

indicator with Alarm / Tip contact (For rating ≥

kVA)(r) Marshalling box (For rating ≥ 500 kVA) (s)

mm dia. magnetic type oil gauge (For rating ≥

kVA) (t) Inspection cover & Jacking lugs (For rating ≥

1600 kVA) For transformer having oil storage

capacity for 2000 liters and higher, nitrogen injection

fire protection system (NIFPS) is to be provided.

With off circuit tap changer +10% to -10% in steps of

Eff. Level -3, Rating-800 KVA

Voltage Ratio (Kv) : 11/0.433

Total Losses (kW)@50% /@100% /% Imp (2.14/5.83/

10 Transformer Platform: 1 No. 40,000.00

Casting of transformer plinth / foundation including

oil soak pit (where required) in situ reinforced

cement concrete in M 20 using granite, quartzite trap

metal of size 6 mm to 20 mm for RCC work including

providing of 53 grade cement & Fe 415 grade TMT

bars, scaffolding, centering, form work, curing etc.

Plinth Dimensions 1750x1750x1000 or as per site

requirement for Transformer Rating 800 KVA

11 MV Cable 120 RMT 1,211.00

Supply, laying, testing & commissioning 1.1 kV grade,

XLPE insulated, stranded Aluminium conductor,

galvanised steel flat strip / round wire armoured,

GWSSB, Gandhinagar

Volume-IV, Price Bid Ranavav Court Building

extruded PVC type ST2 sheathed, heavy duty cable

(to be laid on wall surface with necessary clamps / in

existing cable trench / cable trays / conduit / pipe

sleeves at road crossing or floor as per site

requirement) conforming to IS:7098 (Part-1) &

IEC:60502 (Part-1) of following sizes:

3.5 C x 400 Sq. mm Al. XLPE

12 Cable Glands 6 No. 1,157.00

Providing & fitting heavy duty brass cable glands

(nickel-plated) with washers & rubber ring

conforming to IS, suitable for 3, 3½ & 4 core cables of

following type & sizes:

Double Compression Brass Cable Glands 3.5C/4 C x

13 Cable Termination Kit (With Lugs) 6 No. 1,508.00

Providing & fitting heat shrink cable termination /

jointing kits for 1.1kV grade PVC/ XLPE insulated

cable including necessary earth connectivity

connection, material & consummables making the

termination/ joint complete ensuring the joint

resistance is within the permissble limit as per IS, of

following types & sizes: 3C/3.5C/4C 400 Sq.mm

14 Making Trench in Soft Soil of Suitable width of 90 cm 60 RMT 55.00

deep for laying cable and back filling the same and

making the surface as normal Ground. (HT and LT

15 Supplying & erecting funnel type earthing having 4 No. 7,797.00

earth plate of following size burred in specifically

prepared earth pit 3 mtr. below ground with 40 kg.

charcoal and salt with alternate layers of charcoal

& salt, 20mm.dia. G.I. pipe with Funnel with a wire

mesh for watering & bricks masonry block, C.I. Cover

complete as per para 7.3 of IS 3043 with necessary

length of copper earth wire No 6 SWG bolted with

lug to the plate and covered in 12 mm dia. G.I. pipe

2.5 mtr long complete connected to the nearest

switch gear with end socket as per direction & duly

tested by earth tester confirming to IS (As per

drawing) with with 60 x 60x 0.315 cms. Copper earth

16 Maintenance free Chemical Earthing 4 Lot 5,703.00

Supplying & erecting earth pit of minimum bore

GWSSB, Gandhinagar

Volume-IV, Price Bid Ranavav Court Building

dia.150mm size approved make Earthing Electrode

consisting Pipe-in-Pipe Technology as per IS 3043-

1987 made of corrosion free hot dipped G.I.Pipes

having Outer pipe dia of 50mm having 80-200

Micron galvanising, Inner pipe dia of 25 mm having

200-250 Micron galvanising, connection terminal dia

of 12mm with constant ohmic value surrounded by

highly conductive compound with high charge

dissipation suitable for following type of applications

with chamber and heavy duty cover. (A)(approved

make OEM has to submit test certificate including

value of earth resistance of installation duly stamped

and signed by agency and officer Incharge has to

ensure the value of earthing resistane mentioned in

test Certificate) & having back filling compound of (B)

Inner chemical (CCM Compound)- Resistivity:-

ohm / meter testing as per IEC 62561-2017, Voltage

drop:- < 1 volt at no load & dry form, Sulphar

content:- <2%(C) Back fill Compound :- Earthing

compound should be capable to retain moisture for

long time Necessary test report must be submitted

by Agency. (a) For Electrical Installation up to 11 KV

in normal soil, Length of pipe - 2 Mtr, Back filling

compound - 1 Nos Bag of 25 Kg.

17 Providing and erecting required size copper strip for 60 Kg 787.00

earthing of HT and LT components using proper

18 Providing and erecting required size HOT deep 200 Kg 77.00

galvanized iron strip for earthing of HT and LT

components using proper clamps.

GWSSB, Gandhinagar